Nozzle for vacuum cleaning apparatus.



The!

l am. ...en

miennes.

f''lecation ot netter; Patent,

ille/ten ted 'May lello.

To allzu/icm t 'may conf/'em i Be it known that l, lhlnnnnin T. lvla'r'rnnn, a c1tizen of the United States, residing at Kansas City, in the county of Jackson and State of lllissouri,4 have invented certain new and .useful improvements in Nozzles for Vacuum Cleaning Apparatus; and l do def clare the following to he a full, clean and exact description of the inventions such as will enable others skilled in the art to which it appertains to maize and use the saine, 'reference' being. had. to the accompanying drawings,and to the -letters and figures of reference marked thereon7 which forni a part l5 ot this specification.

My invention relates to a nozzle for vacuum cleaning apparatus, and more pan ticularly to a nozzle for use in cleaning closed objects, such the stocking of an ordinary dust separator ot' the type coinmonly used 1n tlc-u1 mills; the principal oo ject of the invention lieing to" provide a nozzle having a. laterally opening mouth and means 'for impelllng 4matter admitted dust receiver oi' 'the cleaning' apparatus. ln accornplishingr this object l have` provided improveddetails of structure, the preferred forni otjvhich' is illustrated in the accompanyingdraivings, Whereint 'Figure isa perspective view ci a nozzle containingmy improvements, illustrating the use ofthe nozzle in cleaning; a dust separator stocking. Fig. il is an enlarged detail perspective vof the nozzle. Fig. lll isa longitudinal section o the same Referring more ,in detail to the parts1 The nozzle is adapted for connection with a suitable vacuum producer (not shown) by "i0 the usual hose l, and comprises a circular neck 2 to which the hoseis applied preterably by the usual friction coupling 3. At the inner end of the neck 2 the body of the nozzle continues as a body Il, one side vor' which is curved as at 5 to the saine contour as the neck 2, while the opposite side is flared to .forni a single Wedge-shaped structure havingr a flat outer face 6 and a beaded mouth edge 7.

The curved portion of the body is ero tended beyond 'the mouth edge 7 to form an integral neck; the Vextended portion of which comprises a curved side 8 along the same lines as the side 5 of the inner section 5E and a fiat flaring outer tace 9 that terminates in a month edge l0 adjacent the edge ot' the said inner section; the inouth edges of the inner and outer sections losinga spaced to forni a slotted inouth lll thatvextendew tireiyacross the Width ci the body at the ridge the sv tige-shaped outeritaces of the inner and outer sections and along the sides thereof to a point beyond the longitib dinal center of the bodyj so that the mouth is constantly open at the outer edge throughout more than one-half of the Width of the body.

ln order to brace thc ridge portion of the nozzle l prei'eiahly connect the mouth edges of the opposite sections oy straps l2 which may he soldered or welded to the inner faces oi said sections and l also .preferably reinforce the curved side opposite the mouth by a strap or the like, 13. The outer end ot' the nozzle terminates in n circularlport 15, of substantially the saine cross-sectional area as the nec-li; 2, and seated` in said mouth is an injector cone i6 that is secuil'ed to the hotly ci the nozzle preferably by straps 17; the cone being' arranged eoncentrically,v so that the contracted inner end 18 is concentric with the neck channel and inset from the mouth 15,. While the out-er end of `the cone is located a short distance beyond the end of the nozzle body,

ln using my improved nozzle for cleaning objects such as the stocking oi a dust sepan rator, the end of the stoel-:ingr is exposed and the nozzle projected thereinto, so that when vacuum is applied through the hose l suction vithin the nozzle draws dust-laden air `througi the nozzle mouth and through the hose; the force o' the suction when a proper producer is used, being suilicient to draw the air through the ,stocking material' and remove the particles of dust which have lodged therein so that they may pass into the nozzle and be conducted to the dust receiver.

l'lfhile the dust leden air is being drawn through .the nozzle liguth, it ,also enters through the cone 16, and through the restricted dnillce i8. so that should the mouth l1 lie agiiiinst a surface thetis sufficiently clust packed to restrict-flow of air into said. mouth7 air enteringa through the cone and orifice and heine; drawn across the mouth toward the receiver will serve to suck dust through the mouth ll into the nozzle, the air that is drawn into 'the nozzle through the annular orifice or mouth l5 at the cute;`

end the. nozzie serving also for oieaniog parte of the smoking thai; no?, accessibile io the. sioted mouth.

in order to better adapt the nozzle for use in cleaning objeos iike the dust coiieoior stocking, i use @iii elongated couiiectioii i9, haring' iiie friction ooupiiug iioriried integroiiy hei'ovirii and Swivei this Connection ouo iie ho So ihr@ Ehe ooz'zie may be heid by gra. die" the connection und turned 'freeiy ou the swivei. Y f

y eiieodiog the eide portions of the rior mouiii over more diam ooe-half of the width the uozzie, the ietier is adopized 'for cleaning: rile :sitockingi or oiie objeof.

` a5 one progeotlon and Witiidmwei there@n into and from the stocking, as iie nozzie muy oe projected into the Stocking; so that the mouth comes iro ogieroti've proximity to one edge and more than one-half of the width of two Sides of he Stocking, as during iiie inward travel und when the nozzle is turned sind drawn outwordiy into the same opeiviivc aroxiiuity oit' iie other edge oud, reuioiuliig are-o of the Sides. Y

it is oppormi ehu-.t whiie have described fiile operation of the nozzie for cleaning dust Separator sookinge, suoli description has been mereij for liiusretiou as ihe nozzie is noi; limited to use for this particular purpose although eepeciaiiy adapted therefor.

i ing hus described my invention, Wiie Il oiuini as new therein, sind desire to secure by Leers-P ioni? is zin a mozzi-ei a. body men'rbeL comprisiiflgg side Wsiiis und ou edge iured from opposie ends o o ridge, und hmfing a mouth exeodiug across the ridge and into the adjacent Sido Wedis.-

in o uozzio, a body member comprising side woiis und au edge iared outwardly and spaced io form zu intake mouth; the intake oiouh continuiiig from Said edge into ibheI side weils and beyond @the iongitudinai oenier of @he ioter.

in a nozzle7 o body member comprising side walvis and e curved edge, and :in edge iuciiued Vfrom opposie ends und spaced to form un intake mouth and with the intake mouth extending into the side. Wells to points beyond die iongisudioui center of the body.

d. Ei nozzle having e free outer end and having; e Side Waii 'inclined toward an iuteriuediute position, and having; a. transverse Biot at the ridge oi' said Waii, and an injector come located zithe open end of the nozzle and spaced therefrom to form un annular orice. i

5. .iznozzie having un open outer end and having u transverse Sio@ at iis intermediate positionE and u cone located iu the open outer end oiE the nozzle and spaced therefrom to form au anouhu oriice, the bose of jche come being projeced beyond the end of the nozzie' und the point of the cone extending into the ioerioi' thereof substantially as set forth.

in eotimouy whereof' i aiix my signature iu presence of n witness.

"Witoeee 1' 

